C-Command Software Forum

SpamSieve's influence on Apple Mail mailbox behavior options

working in High Sierra. Have set my trash and junk mailbox preferences to delete the contents when quitting Mail. Doesn’t work. Could this be an effect of having SpamSieve?

I don’t think so, since those options are commonly used successfully with SpamSieve. However, if you wanted to check for sure you could temporarily uninstall the plug-in.